Colbert Report Cancellation of the Day: The Colbert Report has abruptly halted production of new episodes and will air reruns for the rest of the week — but no one seems to know why.

A Comedy Central spokesman, Steve Albani, sent the press a terse e-mail saying the yesterday’s taping was canceled “due to unforeseen circumstances,” but refused to provide any additional details.

According to the New York Times, audience members were notified of the cancellation prior to the show, and last night’s guest, author Susan Cain, tweeted that her appearance will be rescheduled.

Third Beat Magazine, which was among the first to break the news, noted that while The Colbert Report has never missed a scheduled taping, its older brother, The Daily Show, has been forced to call off the show twice in the past: Once for the birth of Jon Stewart’s second child, and once due to the passing of a staff member. 

The Hollywood Reporter says it has been told by sources that production should be back to normal soon.

[thirdbeat.]